HP ProLiant DL360 SERIES User Manual page 63

a. Install the riser board with the slot for full-length boards onto the
assembly.
b. Repeat the previous step for the riser board with the slot for half-length
expansion boards, if needed.
10. Install the PCI Express expansion board ("Installing an Expansion Board" on
page 59).
11. Install the PCI riser board assembly.
IMPORTANT: The server will not power up if the PCI riser board
assembly is not seated properly.
12. Connect any internal or external cabling to the expansion boards.
13. Install the access panel ("Installing the Access Panel" on page 28).
Hardware Options Installation 63